Form 8.3 - ROCKHOPPER EXPLORATION PLC

A PERSON WITH INTERESTS IN RELEVANT SECURITIES REPRESENTING 1% OR MORE

Rule 8.3 of the Takeover Code (the “Code”)

1. KEY INFORMATION

(a)

Identity of the person whose positions/dealings

Barclays PLC.

are being disclosed:

(b)

Owner or controller of interest and short

positions disclosed, if different from 1(a):

(c)

Name of offeror/offeree in relation to whose

ROCKHOPPER EXPLORATION PLC

relevant securities this form relates:

(d)

If an exempt fund manager connected with an

offeror/offeree, state this and specify identity of

offeror/offeree:

(e)

Date position held/dealing undertaken:

6 August 2014

(f)

Has the discloser previously disclosed, or are

YES:

they today disclosing, under the Code in respect

MEDITERRANEAN OIL & GAS

of any other party to this offer?

2. POSITIONS OF THE PERSON MAKING THE DISCLOSURE

(a) Interests and short positions in the relevant securities of the
offeror or offeree to which the disclosure relates following the dealing
(if any)

Class of relevant security:

ORD

Interests

Short Positions

Number

(%)

Number

(%)

(1)

Relevant securities owned

and/or controlled:

11,476,823

4.03%

1,037,826

0.36%

(2)

Derivatives (other than

options):

1,019,795

0.36%

11,276,823

3.97%

(3)

Options and agreements to

purchase/sell:

0

0.00%

0

0.00%

TOTAL:

12,496,618

4.39%

12,314,649

4.33%

All interests and all short positions should be disclosed.

Details of any open derivative or option positions, or agreements to
purchase or sell relevant securities, should be given on a Supplemental
Form 8 (Open Positions).

(b) Rights to subscribe for new securities (including directors’ and
other executive options)

Class of relevant security in relation to which subscription right
exists:

Details, including nature of the rights concerned and relevant
percentages:

If there are positions or rights to subscribe to disclose in more than
one class of relevant securities of the offeror or offeree named in
1(c), copy table 2(a) or (b) (as appropriate) for each additional class
of relevant security.

3. DEALINGS (IF ANY) BY THE PERSON MAKING THE DISCLOSURE

(a) Purchases and sales

Class of relevant

Purchase/sale

Number of

Price per unit

security

securities

ORD

Purchase

530

0.8785 GBP

ORD

Sale

5,937

0.8809 GBP

(b) Derivatives transactions (other than options)

Class of

Product

Nature of dealing

Number of

Price per

relevant

description

reference

unit

security

securities

ORD

CFD

Long

5,937

0.8809 GBP

ORD

CFD

Short

530

0.8785 GBP

(c) Options transactions in respect of existing securities

(i) Writing, selling, purchasing or varying

Class of relevant security

Product description e.g. call option

Writing, purchasing, selling, varying etc.

Number of securities to which option relates

Exercise price per unit

Type

e.g. American, European etc.

Expiry date

Option money paid/ received per unit

(ii) Exercising

Class of relevant security

Product description

e.g. call option

Number of securities

Exercise price per unit

(d) Other dealings (including subscribing for new securities)

Class of relevant security

Nature of dealing

e.g. subscription, conversion

Details

Price per unit (if applicable)

The currency of all prices and other monetary amounts should be stated.

Where there have been dealings in more than one class of relevant
securities of the offeror or offeree named in 1(c), copy table 3(a),
(b), (c) or (d) (as appropriate) for each additional class of relevant
security dealt in.

4. OTHER INFORMATION

(a) Indemnity and other dealing arrangements

Details of any indemnity or option arrangement, or any agreement or
understanding, formal or informal, relating to relevant securities
which may be an inducement to deal or refrain from dealing entered
into by the person making the disclosure and any party to the offer
or any person acting in concert with a party to the offer:

If there are no such agreements, arrangements or understandings,
state “none”

NONE

(b) Agreements, arrangements or understandings relating to options or
derivatives

Details of any agreement, arrangement or understanding, formal or
informal, between the person making the disclosure and any other
person relating to:

(i) the voting rights of any relevant securities under any option;
or

(ii) the voting rights or future acquisition or disposal of any
relevant securities to which any derivative is referenced:

If there are no such agreements, arrangements or understandings,
state “none”

NONE

(c) Attachments

Is a Supplemental Form 8 (Open Positions) attached?

NO

Date of disclosure:

7 Aug 2014

Contact name:

Rajesh Muthanna

Telephone number:

020 3555 4634

Public disclosures under Rule 8 of the Code must be made to a Regulatory
Information Service and must also be emailed to the Takeover Panel at monitoring@disclosure.org.uk.
The Panel’s Market Surveillance Unit is available for consultation in
relation to the Code’s dealing disclosure requirements on +44 (0)20 7638
0129.